Process for producing a magnetic recording medium

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156236, 156238, 1562724, 1562733, 1562739, 1562755, 427 35, 427 36, 427 44, 427 541, 427128, 427130, H01F 1002

Patent

active

046647341

ABSTRACT:
A process for producing a magnetic recording medium is disclosed. The process comprises coating a magnetic coating composition comprising a ferromagnetic powder, a binder, and an organic solvent on either a non-magnetic support or a roller or band having a mirror surface to form a magnetic layer on the non-magnetic support or the roller or band, respectively, drying the magnetic layer so as to have a solvent content of from 0.05 to 10% by weight, contacting the magnetic layer on the support or the roller or band with a roller or band having a mirror surface or a non-magnetic support, respectively, and separating the magnetic layer from the roller or band. The resulting magnetic recording medium has smooth surface, high electromagnetic properties, and good durability.

REFERENCES:
patent: 3793066 (1974-02-01), Frenken et al.
patent: 4273603 (1981-06-01), Peronnet et al.
patent: 4312898 (1982-01-01), McDaniel
patent: 4495241 (1985-01-01), Iijima
patent: 4499121 (1985-02-01), Yamaguchi et al.

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